Example An operating system is a widely-used example of a complex concurrent system that manages many different types of applications and hardware. For instance, it coordinates and demultiplexes the communication between standard Internet networking applications, such as telnet, ftp, smtp, dns, and inetd, and hardware I/O devices, such as network interfaces, disk controllers, end-user terminals...

In this paper, we present a basic discrete-time queueing model whereby the service process is decomposed in two (variable) components: the demand of each customer, expressed in a number of work units needed to provide full service of the customer, and the capacity of the server, i.e., the number of work units that the service facility is able to perform per time unit. The model is closely relat...

A numerical study has been done through an Al2O3–water in a double lid-driven  square  cavity with various  inclination  angles  and discrete heat sources. The top and right moving walls are at low temperature. Half of  the  left and bottom walls are  insulated and  the  temperatures of the other half are kept at high. A large number of simulations for a wide  range  of Richardson  number ...

We propose a numerical algorithm for solving inverse problems of spectral analysis for Sturm–Liouville differential operators on the half-line. Moreover some results of numerical experiments are also presented. AMS subject classification: 65L09, 34A55, 47E05.

Abstract We implement the unified transform method of Fokas as a numerical to solve linear evolution partial differential equations on half-line. The computes solution at any $x$ and $t$ without spatial discretization or time stepping. With help contour deformations oscillatory integration techniques, method’s complexity does not increase for large $x,t$ is more accurate (absolute errors are sm...

We give a unified proof for the well-posedness of a class of linear half-space equations with general incoming data and construct a Galerkin method to numerically resolve this type of equations in a systematic way. Our main strategy in both analysis and numerics includes three steps: adding damping terms to the original half-space equation, using an inf-sup argument and even-odd decomposition t...